Grigor Dimitrov targets grand slam after winning ATP finals

Grigor Dimitrov claimed the biggest title of his career by beating David Goffin at the ATP Finals - and now has his sights set on winning a grand slam.

For years Dimitrov has struggled to deliver on his supreme technical talent but the Bulgarian may finally be living up to the hype after he beat Goffin 7-5 4-6 6-3 at The O2.